Patents Assigned to Display Technologies
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Patent number: 11877472Abstract: An organic light-emitting diode (OLED) display panel and a display device are provided. The OLED display panel includes a substrate, a driving circuit layer, a luminous functional layer, a first coupling layer, and a second coupling layer. The second coupling layer includes a first coupling portion, a second coupling portion, and a third coupling portion respectively corresponding to red, green, and blue pixels. A thickness of the first coupling portion is greater than or equal to a thickness of the second coupling portion, and greater than a thickness of the third coupling portion. The thickness of the second coupling portion is greater than or equal to the thickness of the third coupling portion.Type: GrantFiled: July 24, 2020Date of Patent: January 16, 2024Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Jiajia Sun
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Patent number: 11874543Abstract: A plurality of pixel electrodes are provided in a display region. A plurality of pixel transistors corresponding to the plurality of pixel electrodes in a one-to-one manner are provided in a region outside the display region. Each of the pixel transistors is connected to the corresponding pixel electrode by a pixel wiring line. An input pad group, to which a drive signal group for driving the plurality of pixel transistors is input, is provided on a TFT substrate. Here, of a region on the TFT substrate, the plurality of pixel transistors are provided only in a region other than a region between the input pad group and the display region.Type: GrantFiled: January 20, 2023Date of Patent: January 16, 2024Assignee: Sharp Display Technology CorporationInventors: Takahiro Yamaguchi, Shige Furuta, Yuhichiroh Murakami, Hiroyuki Adachi
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Patent number: 11877495Abstract: A display panel, a manufacturing method of the display panel, and a display device are provided. The display panel includes an under-screen device area and a non-under-screen device area, wherein an area under the under-screen device area includes an area where hardware is installed; the under-screen device area includes a substrate portion, an anode layer, a pixel definition layer, a deformation layer, a cathode layer, and an encapsulation layer; wherein, a volume of the deformation layer expands under a first predetermined condition to enable a thickness of the cathode layer in the under-screen device area less than a thickness of the cathode layer in the non-under-screen device area.Type: GrantFiled: July 29, 2020Date of Patent: January 16, 2024Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Jie Pan
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Patent number: 11874549Abstract: Provided are an optical element that can achieve both color difference control and luminance reduction at an oblique viewing angle, and a liquid crystal display device including the optical element and having excellent display quality. The optical element includes: a first polarizer; a first phase difference layer; a second phase difference layer; and a second polarizer, the first polarizer, the first phase difference layer, the second phase difference layer, and the second polarizer being arranged in the stated order, the first phase difference layer satisfying the formula nx>ny?nz, the second phase difference layer satisfying the formula nz>nx?ny, the first polarizer and the second polarizer being linear polarizers, transmission axes of the first polarizer and the second polarizer being parallel to each other, a slow axis of the first phase difference layer being orthogonal to a polarization axis of the first polarizer.Type: GrantFiled: May 19, 2023Date of Patent: January 16, 2024Assignee: Sharp Display Technology CorporationInventors: Ryosuke Saigusa, Akira Sakai, Yuichi Kawahira, Masahiro Hasegawa
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Patent number: 11877497Abstract: An OLED display screen and a method for manufacturing the same are provided. The OLED display screen includes a first substrate; a fastener disposed on a side of a surface of the first substrate; a second substrate disposed on a surface of the fastener far away from the first substrate; and a flexible display module extending and bent from a surface of the first substrate far away from the fastener to a surface of the second substrate far away from the fastener, wherein a gap without a filler is provided between the flexible display module and the fastener.Type: GrantFiled: June 15, 2020Date of Patent: January 16, 2024Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Zhitao Zhu
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Patent number: 11877492Abstract: An OLED display device includes a substrate, a pixel defining layer disposed on the substrate and provided with first openings, a black bank layer disposed on the pixel defining layer and provided with second openings corresponding to the first openings, a first thin film encapsulation sublayer, and color resist layers. A width of the second openings is greater than a width of the first openings. Each part of the pixel defining layer adjacent to the first openings and each corresponding part of the black bank layer adjacent to the second openings form a stepped structure. The first thin film encapsulation sublayer covers the black bank layer, the pixel defining layer, and the substrate. Parts of the first thin film encapsulation sublayer corresponding to the stepped structures have a stepped shape. The color resist layers are disposed on parts of the first thin film encapsulation sublayer in the first openings.Type: GrantFiled: October 27, 2021Date of Patent: January 16, 2024Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Wenxu Xianyu, Wenliang Gong
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Patent number: 11874557Abstract: A reflective sheet is attached to a front face of a light source substrate so as to cover a head portion of a fixing member, a bridge across the head portion of the fixing member is formed by providing a slit in the reflective sheet, and the bridge is disposed so as to pass through a central portion of a region surrounded by four light sources around the head portion of the fixing member.Type: GrantFiled: May 29, 2023Date of Patent: January 16, 2024Assignee: Sharp Display Technology CorporationInventor: Daisuke Teragawa
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Patent number: 11874999Abstract: The present application provides a display panel with an under-screen camera and a method of manufacturing the same. The touch panel in the present application includes a sensing electrode and a driving electrode insulated from each other, wherein the sensing electrode and/or the driving electrode includes a lens-shaped touch point array made of a transparent material, material of the touch point array includes a transparent silver nano-wire conductor, and a transparency of the silver nano-wire conductor is greater than 91%, which can be used as a light adjustment layer, to increase the light output effect of the under-screen display area and reduce a difference in contrast between the under-screen display area and the normal display area.Type: GrantFiled: June 19, 2020Date of Patent: January 16, 2024Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Simin Peng
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Patent number: 11874565Abstract: A display substrate, a manufacturing method thereof and a display device are provided. The display substrate includes a display region and a peripheral region surrounding the display region, and includes: a common electrode line extending in a first direction on a base substrate and arranged at the display region and the peripheral region; a first conductive pattern arranged at the peripheral region and electrically connected to the common electrode line; an insulation layer covering the first conductive pattern and the common electrode line, a via-hole being formed in the insulation layer, an orthogonal projection of the via-hole onto the base substrate not overlapping an orthogonal projection of the common electrode line onto the base substrate; and a second conductive pattern arranged at the peripheral region and at a side of the insulation layer distal to the first conductive pattern, and electrically connected to the first conductive pattern through the via-hole.Type: GrantFiled: December 30, 2020Date of Patent: January 16, 2024Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Chunguang Tian, Tianyu Xia, Xiaolong Li
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Patent number: 11875742Abstract: A display drive circuit, a drive method thereof, and a display device are disclosed. The display drive circuit includes: a pixel circuit and a compensation circuit, the pixel circuit includes: a drive transistor, a light emitting device, a storage capacitor, and a gating sub-circuit configured to control connection and disconnection between the control electrode of the drive transistor and a control terminal of the compensation circuit and connection and disconnection between a second electrode of the light emitting device and a sensing terminal of the compensation circuit in response to a signal of a scanning line; the compensation circuit includes: a voltage generating sub-circuit configured to generate a sensing voltage according to the drive current and a target data voltage, and a voltage adjusting sub-circuit configured to adjust a voltage of the control terminal according to the sensing voltage and a voltage of a second power supply terminal.Type: GrantFiled: May 19, 2021Date of Patent: January 16, 2024Assignees: Beijing BOE Display Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Wenpeng Xu, Dianzheng Dong, Qiang Zhang, Guangxing Wang, Haiqin Huang, Wan Lin, Haixu Wang, Leiyang Wang
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Patent number: 11877475Abstract: A display panel and a method for manufacturing the same are provided. The display panel comprises a thin film transistor array substrate, a storage capacitor, and a light-emitting element, wherein the thin film transistor array substrate comprises a driving thin film transistor and a switching thin film transistor, the driving thin film transistor and the switching thin film transistor are electrically connected, the driving thin film transistor and the light-emitting element are electrically connected, and the storage capacitor comprises a conductive portion of a first active layer of the switching thin film transistor and an anode of the light-emitting element.Type: GrantFiled: May 20, 2020Date of Patent: January 16, 2024Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Chuanbao Luo
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Publication number: 20240012512Abstract: The present application provides a backlight module and a display device. The backlight module includes: a metal layer including signal lines and first signal connection lines extending along a first direction in the same layer; and light-emitting control structures. One signal line is disposed at each of at least one side of each column of the light-emitting control structures, each light-emitting control structure is connected to the corresponding signal line, and any two adjacent ones of the light-emitting control structures in each column of the light-emitting control structures are connected through one first signal connection line.Type: ApplicationFiled: March 26, 2021Publication date: January 11, 2024Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Liang Fang
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Publication number: 20240010842Abstract: An embodiment of the present application discloses a display panel, a manufacturing method thereof, and a display device thereof. The display panel includes a light emission functional layer and a color filter layer, the color filter layer includes a light shielding units, a light shielding material in the light shielding units includes a light shielding composition. The light shielding composition includes a plurality of carbon black particles and at least one function group located on surfaces of the carbon black particles. The function group is an acidic functional group or a free radical capture group, the acidic functional group is one of a carboxyl group, a hydroxy group, and a carbonyl group. The free radical capture group is a ketone group.Type: ApplicationFiled: December 8, 2021Publication date: January 11, 2024Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Jing Zhou
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Publication number: 20240014366Abstract: A display panel including a substrate including signal lines, and a light-emitting element group located at a side of the substrate and electrically connected to the signal lines. The light-emitting element group includes light-emitting chips, each including a light-emitting element and a driver circuit that are stacked. The driver circuit is used to drive the light-emitting element to emit light. The light-emitting chips include at least a first light-emitting chip located at the side of the substrate and a second light-emitting chip located at a side of the first light-emitting chip adjacent to the substrate. An orthographic projection area of the second light-emitting chip is smaller than that of the first light-emitting chip in a first direction, and the first direction is perpendicular to a plane of the substrate.Type: ApplicationFiled: September 20, 2023Publication date: January 11, 2024Applicant: Tianma Advanced Display Technology Institute (Xiamen) Co., Ltd.Inventor: Sitao HUO
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Publication number: 20240016005Abstract: An OLED display device and a manufacturing method thereof are provided. The OLED display device includes a base substrate, a plurality of OLED devices, and a plurality of spacers. A plurality of OLED devices are disposed on the base substrate. At least part of the OLED devices are provided with an inorganic layer on a side away from the base substrate. At least part of the spacers are distributed at the gaps between the OLED devices. The OLED display device can prevent a problem of degradation of display quality due to external impact.Type: ApplicationFiled: November 23, 2021Publication date: January 11, 2024Applicants: HUIZHOU CHINA STAR OPTOELECTRONICS DISPLAY CO., LTD., SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Yun Zhao
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Publication number: 20240013723Abstract: A pixel driving circuit, a display panel and a display device are provided. The pixel driving circuit includes a light emitting element and an amplitude modulation device. The amplitude modulation device includes a first driving transistor, a first switch transistor and a second switch transistor. The first driving transistor is configured to provide a driving current for the light emitting element, the first switch transistor and the second switch transistor are configured to selectively control the light emitting element to enter a light emitting stage, and a width-to-length ratio of a channel of the first switch transistor is different from a width-to-length ratio of a channel of the second switch transistor.Type: ApplicationFiled: September 27, 2023Publication date: January 11, 2024Applicant: TIANMA ADVANCED DISPLAY TECHNOLOGY INSTITUTE (XIAMEN) CO., LTD.Inventor: Yingteng ZHAI
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Publication number: 20240016021Abstract: A color filter substrate and an organic light-emitting display panel are disclosed. The color filter substrate is rectangular and has an upper side, a lower side, a left side, and a right side, wherein, the lower side corresponds to a driving chip of the organic light-emitting display panel. The color filter substrate includes a light-shielding layer defined with a plurality of light-transmitting holes arranged in an array, and from the upper side to the lower side, openings of the light-transmitting holes are gradually smaller. The present disclosure allows an aperture ratio of the light-shielding layer to be gradually reduced from the upper side that is away from the driving chip to the lower side that corresponds to the driving chip. Therefore, an area of the organic light-emitting display panel having uneven chroma and brightness can be compensated, thereby improving uniformity of the chroma and brightness.Type: ApplicationFiled: May 17, 2021Publication date: January 11, 2024Applicants: Wuhan China Star Optoelectronics Technology Co., Ltd., Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Qiwen ZHU
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Publication number: 20240016027Abstract: The present disclosure discloses a display panel and a display device. The display panel includes a display region, an optical-device region, and a transition region, and further includes a substrate; and a thin-film-transistor layer disposed on one side of the substrate, wherein the thin-film-transistor layer comprises at least one undercut structure within the transition region, wherein the undercut structure comprises at least one inorganic layer and at least one organic layer; wherein one inorganic layer is at least disposed on one side of the organic layer away from the substrate; and wherein an orthographic projection area of the organic layer on the substrate is located within an orthographic projection area, of the inorganic layer away from one side of the substrate and close to the organic layer, on the substrate.Type: ApplicationFiled: June 7, 2021Publication date: January 11, 2024Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Liang Fang
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Publication number: 20240016036Abstract: An embodiment of the present application discloses a display panel. In the display panel, a first substrate includes a first bonding portion. The first bonding portion corresponds to a non-display region. A second substrate is located on a light exiting side of the display panel, and the second substrate includes a second bonding portion. The second bonding portion covers the first bonding portion. An end of the second bonding portion is bonded and connected to the first bonding portion. A flexible circuit substrate is bonded and connected to another end of the second bonding portion.Type: ApplicationFiled: May 26, 2021Publication date: January 11, 2024Applicant: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Xiaohong JING
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Publication number: 20240012278Abstract: A display panel and a display device are disclosed. The display panel includes drive transistors and photosensitive transistors disposed in a same layer of a first substrate. Each of the photosensitive transistors is correspondingly disposed in a gap between at least two adjacent color resist blocks. A plurality of pairs of first light-shielding support columns are disposed between the first substrate and a second substrate, a first end thereof is connected to the first substrate, and a second end thereof is connected to the second substrate. Wherein, each pair of the first light-shielding support columns is disposed corresponding to each of the photosensitive transistors by one to one.Type: ApplicationFiled: May 28, 2021Publication date: January 11, 2024Applicant: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Haijun WANG, Jiangbo YAO